Types of storage available in ionic framework?

Ionic Framework ionic-v3
1

|A.| HTML5 local storage
|B.| Cordova storage.
|C.| Both A and B
|D.| None

2

C

HTML5 local storage - window.localStorage.setItem('key','value'); 
Cordova storage - 
import { Storage } from '@ionic/storage';
this.storage.set('key','value');
3

You have NativeStorage too : Native Storage Doc